444 



THE SILURIAN ROCKS 



Orthoceras MacLareni, Salt. 

 0. sp. 



PISCES. 



Birkenia elegans, Traq. 

 Thelodus planus, Traq. 

 T. scoticus, Traq. 



Fish remains indt. 



INCERTAE SEDIS. 



Dictyocaris Ramsayi, Salt. 

 D Slimoni, Salt. 



Podowrin, H., L. 

 Hagshaws. 



Shanks' Castle, L. 



Logan House, L. 



Shanks' Gas., Logan House, Linn 



Burn, L. 

 Logan House, L. 



Shanks' Gas., Logan Water, L., H. 

 Blackberry Burn, L. 



FOSSILS FROM THE DOWNTONIAN BOCKS OF THE LESMAHAGOW AND 



HAGSHAW HILLS AREAS. 



Pachytheca sp. 



Parka sp. 

 P. sp. nov. 

 Sponge. 



Spirorbis sp. 



Beyrichia sp. 



Ceratiocaris laxa, Jones & Woodw. 



C. sp. 



Eurypterus dolicoschelus, Laurie. 



E. sp. 



E. small sp. 



Pterygotus bilobus, Salt. 



Slimonia acuminata, Salt. 



Stylonurus ornatus, Laurie. 



S. sp. 



Scorpion, fragment. 



Myriapod. 



Glauconome disticha, Goldf. 



Ateleaspis tessellata, Traq. 



Birkenia elegans, Traq. 

 Lanarkia horrida, Traq. 

 L. spinosa, Traq. 

 L. spinulosa, Traq. 



Lasanius armatus, Traq. 

 L. problematicus, Traq. 



Thelodus scoticus, Traq. 



INCERTAE SEDIS. 

 Dictyocaris sp. 

 Chain of discs ( = ? sponge). 



L. 



Smithv 



Seggholm, Dippal, 



Burn, H. 

 Dippal, L. 

 Dippal, L. 

 Seggholm, L. ; Monk's Water, Smithy 



Burn, H. 

 Smithy Burn, H. 

 Birkenhead Burn, L. 

 Seggholm, L. 



Birkenhead Burn, Dippal, L. 

 Seggholm, Dippal, L. ; Smithy Burn, H. 

 Birkenhead Burn, L. 

 Monk's Water, H. 

 Birkenhead Burn, L. 

 Birkenhead Burn, L. 

 Seggholm, L. 

 Birkenhead Burn, L. 

 Monk's Water, H. 

 Seggholm, L. 

 Smithy Burn, H. 

 Birkenhead Burn, Seggholm, L. ; 



Smithy Burn, H. 

 Birkenhead Burn, Seggholm, Dippal, 



L. ; Monk's Water, H. 

 Birkenhead Burn, Seggholm, Dippal, 



L. ; Monk's Water, H. 

 Birkenhead Burn, Seggholm, Dippal, 



L. ; Monk's Water, H. 

 Birkenhead Burn, Seggholm, Dippal, 



L. ; Monk's Water, H. 

 Seggholm, L. 

 Birkenhead Burn, Seggholm, Monk's 



Water, Smithy Burn, H. 

 Birkenhead Burn, Dippal, Seggholm, 



L. ; Monk's Water, H. 



L., H., C. 

 L., H. 



